I've been really busy lately and my chicken house was really needing a good cleaning. We have had a lot of rain lately, so I bought some Stall Dry today when I bought feed. When I got home I noticed that it did not say it was safe for chickens. I cleaned the coop and put a lot of pine shavings and some hay down. Is Stall Dry okay for chickens and if so, how much do I use? Thanks!